System-by-design method for efficient linear array miniaturisation through low-complexity isotropic lenses

Abstract : The design of miniaturised linear arrays by using isotropic lenses with reduced complexity is addressed. The problem at hand is formulated as a global optimisation one, then solved by means of a computationally-efficient customisation of the system-by-design (SbD) paradigm suitably integrated with the quasi-conformal transformation optics method. To yield arbitrary transformation geometries with a limited set of degrees-of-freedom and to reduce the lens complexity, while guaranteeing the same radiation performance of a larger reference aperture, a spline-based description of the lens shape is adopted. Representative numerical results are reported to assess the effectiveness as well as the computational efficiency of the proposed SbD-based approach.
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https://hal.archives-ouvertes.fr/hal-02137810
Contributor : Andrea Massa <>
Submitted on : Thursday, May 23, 2019 - 11:59:33 AM
Last modification on : Saturday, May 25, 2019 - 1:15:09 AM

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Marco Salucci, Lorenza Tenuti, Giorgio Gottardi, Mohammad Abdul Hannan, Andrea Massa. System-by-design method for efficient linear array miniaturisation through low-complexity isotropic lenses. Electronics Letters, IET, 2019, 55 (8), pp.433-434. ⟨10.1049/el.2018.6653⟩. ⟨hal-02137810⟩

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